C-O Coupling/[4+2] Cycloaddition Tandem Reactions via Oxidative Dearomatization of BINOLs: Access to Bridged Polycyclic Compounds.

Intramolecular C-H activation/C-O coupling, dearomatization, and [4+2] cycloaddition of BINOL units have been well developed in a one-pot approach with maleimide derivatives as the dienophiles. This tandem catalytic system generates a variety of functionalized bridged polycyclic products in a step-economical manner, which greatly enriches the modification methods and strategies for the BINOL skeletons.

Three-component acyloxylation of diazo compounds with carboxylic acids and azadienes.

Despite many studies on benzofuran-derived azadiene being reported, multi-component studies have scarcely been reported on this heterocyclic skeleton. The first cascade three-component acyloxylation of diazos with acids and azadienes has been reported under mild conditions. The reaction is applicable to various (A/A) diazo compounds, generating diverse complex benzofuran derivatives.

Bis{1-[(E)-(2-methyl-phen-yl)diazen-yl]-2-naphtho-lato}palladium(II).

In the title compound, [Pd(C(17)H(13)N(2)O)(2)], the Pd(II) atom is tetra-coordinated by two N atoms and two O atoms from two bidentate methylphenyl-diazenylnaphtolate ligands, forming a square-planar complex. The two N atoms and two O atoms around the Pd(II) atom are trans to each other (as the Pd(II) atom lies on a crystallographic inversion centre) with O-Pd-N bond angles of 89.60 (11) and 90.